There is the minimum requirement first.
-Comfortable with the redundancy of the boat.
-Comfortable that boat can be safe in 30' Seas for several hours.
-Comfortable boat has fuel range regardless of conditions so adequate reserve.
-No member of the crew must work more than 13 hours a day at a crew function. All members have a sleep period of at least 8 hours.
Now my ideal below:
-Enough speed that the longest run is 7-8 days. (not achievable with most trawlers). This puts you within 4 days of land at all times.
-With crew limitations from above, always at least 2 crew "on duty/working." This requires at least 4 crew members who can either take the helm or help on a watch. Beyond that, the more the better, but my preferred minimum for multi day 24 hour cruising is at least 4.
There is the minimum requirement first.
-Comfortable with the redundancy of the boat.
-Comfortable that boat can be safe in 30' Seas for several hours.
-Comfortable boat has fuel range regardless of conditions so adequate reserve.
-No member of the crew must work more than 13 hours a day at a crew function. All members have a sleep period of at least 8 hours.
Now my ideal below:
-Enough speed that the longest run is 7-8 days. (not achievable with most trawlers). This puts you within 4 days of land at all times.
-With crew limitations from above, always at least 2 crew "on duty/working." This requires at least 4 crew members who can either take the helm or help on a watch. Beyond that, the more the better, but my preferred minimum for multi day 24 hour cruising is at least 4.
I forgot one thing on boat specifications.
The air intakes for the engine room on my boat are high and dry in all conditions. All deck level or lower intakes are blocked off and permatilty sealed.
The fresh air intake is aft and above the deckhouse going down to a 24"X24"X8" air box with a 24" 24 volt blower fan mounted in it blowing clean dry fresh air into the engine room with emergency dampers attached.
The exhaust air is going up and out just under the covered walkways overhead from the forward part of the engine room. Fresh air for the cabins, galley, and HVAC come from adjustable dorade boxes.
2- ask for a professional skipper or crew. Not cheap but feasable with real pro ,means no bla bla bla ... Balance with shipping cost on a cargo?
I don't know...I suppose the whole thing gets a bit tricky...something that can cross the atlantic but also coastal and canal or river cruise in europe might be a bit conflicting....depth of draft, air draft, etc...With all the required differences between an inshore or along shore vessel, and a true passage maker its like comparing a motorcycle and a delivery van.
Sure either could do the others job , but not very well.
The inshore boat will be far better at cruising as fewer compromises will have been made to handle ocean work.
Yes, I certainly appreciate that...as well as knowledge, handiness, spare parts, planning, weather monitoring equipment, and so on
My original question though was meant more about the physical design/properties of a boat
Inother thread currently running asked about a Katy Krogen Manatee. One of teh 1st posts someone pointed out that because of the hull shape it's firmly in the coastal cruiser camp.... I had to look up what this boat looks like.
so yes, this is not the sort of boat I would empirically think would be a great crosser of big seas... can't see much...but high sides, big side windows, looks top heavy(I know...can't see what's under the water), no way to walk the sides to fend off piers or the many other reasons you might want safe side transit and access, bows are raised but not at all flaired....
Show me some examples and point out things that indicate it might cross an occasional ocean (with good weather planning) but still might be a great coastal cruiser ...maybe even suitable for some of the European rivers or canals (air draft seemingly important for that, so a mast that can step down, etc...) I know it wouldn't be ALL canals, as some require an incredibly low air draft and shallow water draft.....
Show me some examples and point out things that indicate it might cross an occasional ocean (with good weather planning) but still might be a great coastal cruiser ...maybe even suitable for some of the European rivers or canals (air draft seemingly important for that, so a mast that can step down, etc...) I know it wouldn't be ALL canals, as some require an incredibly low air draft and shallow water draft.....
Our new to us boat. High bow, flared out, 4' railings all around, 2100 gallons of fuel, 1/2" tempered glass in ports, full walk around, 3 water tight compartments. Multiple de watering devices. Single Gardner with get home capability, 500 gal fresh water, paravanes, one through hull below water line, exterior rudder post, Berths for 6, 10 in a pinch. Accessibility everything mechanical w/o having to tear apart cabin sole/bulkheads. TONs of storage. Was originally designed to be French Canal capable, but Pilothouse was replaced with custom aluminum (fixed) as well as fixed mast. Designed by Robert Beebe (Hull 118). Built in the Philippines, brought home to PNW on her own bottom. Probably more than we need, but nice to have, and not need, than to need, and not have. Plan is 18 mo give or take in PNW and then down West Coast, thru Canal, to Keys/Bahamas in a leisurely manner. Not everyone's boat, but it'll do for us.
Our new to us boat. High bow, flared out, 4' railings all around, 2100 gallons of fuel, 1/2" tempered glass in ports, full walk around, 3 water tight compartments. Multiple de watering devices. Single Gardner with get home capability, 500 gal fresh water, paravanes, one through hull below water line, exterior rudder post, Berths for 6, 10 in a pinch. Accessibility everything mechanical w/o having to tear apart cabin sole/bulkheads. TONs of storage. Was originally designed to be French Canal capable, but Pilothouse was replaced with custom aluminum (fixed) as well as fixed mast. Designed by Robert Beebe (Hull 118). Built in the Philippines, brought home to PNW on her own bottom. Probably more than we need, but nice to have, and not need, than to need, and not have. Plan is 18 mo give or take in PNW and then down West Coast, thru Canal, to Keys/Bahamas in a leisurely manner. Not everyone's boat, but it'll do for us.
You better chain that boat to the dock. If I find it and no one onboard, gone gone gone. LOL
"My boat has a cockpit with small drains and I always worry about it getting pooped if in a big breaking following sea. It also has a small door out to the swim platform so maybe if caught in that situation I should just leave the door open?"
The international fish boat folks have construction guides., mostly for 3rd world folks.
I believe they list cockpit drain times .
Plug up the scuppers put a hose in till water runs out over the side and unplug the drains and time the drain time.
This is a very radical test as wave action will probably shake much of the water out.
It needs a door on both side of the saloon fwd to quick access the bow area.
Also many European canals require a narrow beam, I would guess.
IMO, a well designed walk around is not really necessary if there is access fwd and a cockpit. The midship cleats can be right outside the saloon doors.
My AT has a "hang on to rope" walk around. I would rather the saloon went the full width gaining maybe another 18 inches width internal or perhaps offset the saloon and capturing the excess space on the stbd side to promote a safer side deck. SHRUG
You have got to understand, each boat design has a CE rating when it comes out of the factory. What stuff you put on the boat deck will have an effect of the actual abilities.
I do not know the CE rating of the KKs.
Not much discussion about engine exhaust systems. It is a critical factor in big seas. A wet exhaust system may work fine in most conditions but take 8’ seas over the stern for 24 hours and you could easy kill an engine or both. Now what? No power and you are quickly beam to. Then things go down hill fast. Dry exhaust will not be as much an issue, unless they break over that. And don’t think it can’t happen in a small boat .